“The peer-to-peer learning community, P2PU, was founded in 2007. Since then, it has grown to approximately 1000 members. The credo “everyone has something to contribute and everyone has something to learn” guides the design of this informal university. Users can create their own courses or choose to subscribe to an existing course – either as active participants or as followers. Courses run for several weeks at a time and are open for enrollment during this period.”Stefanie Panke, Educational Technology & Change (ETC), 11. August 2011